EP0799632B1 - Liquid filter, especially lubricant oil filter for a combustion engine - Google Patents

Liquid filter, especially lubricant oil filter for a combustion engine Download PDF

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Publication number
EP0799632B1
EP0799632B1 EP97104450A EP97104450A EP0799632B1 EP 0799632 B1 EP0799632 B1 EP 0799632B1 EP 97104450 A EP97104450 A EP 97104450A EP 97104450 A EP97104450 A EP 97104450A EP 0799632 B1 EP0799632 B1 EP 0799632B1
Authority
EP
European Patent Office
Prior art keywords
screw
filter
housing
region
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97104450A
Other languages
German (de)
French (fr)
Other versions
EP0799632A1 (en
Inventor
Hans Gebert
Hans Jensen
Thomas Sextl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Filtersysteme GmbH
Original Assignee
Mahle Filtersysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle Filtersysteme GmbH filed Critical Mahle Filtersysteme GmbH
Publication of EP0799632A1 publication Critical patent/EP0799632A1/en
Application granted granted Critical
Publication of EP0799632B1 publication Critical patent/EP0799632B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B01D2201/305—Snap, latch or clip connecting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
    • F01M2001/1064—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising drains for oil to the carter, e.g. to recover spilled oil during change of filters

Definitions

  • the invention relates to a liquid filter according to the preamble of claim 1.
  • the task of the present is to find a solution for this Invention by an embodiment according to the characteristic Part of claim 1 is solved.
  • the filter has a cup-shaped housing 1 into which a Screw cap 2 can be screwed in.
  • This filter is by means of a screw 3 on a connection part, not shown fixable.
  • the connection areas of the filter and the connection part are each formed flat so that the two Parts are sealed against each other using seals can.
  • the screw 3 lies with its screw head on the inside Bottom of the filter housing 1, so that the filter housing firmly is pressed onto the connector.
  • Inside the filter there is an exchangeable ring filter insert 4.
  • This filter insert is closed at the front and via a snap connection on the bottom of the screw cap 2 attached.
  • the filter insert is on the other end 4 radially tight on a hollow socket attached to the housing 5 pushed on tightly.
  • the filter insert 4 is flowed through from the outside radially inwards.
  • the filtered liquid passes through the hollow Nozzle 5.
  • the liquid to be filtered passes through a serving as inlet 6 from a corresponding Open the connector from the filter.
  • the filtered liquid comes out of the nozzle 5 via a channel 7 molded into the housing wall into the screw 6 formed blind hole cavity 8.
  • This Entry occurs radially in screw 3 provided breakthroughs 9.
  • These breakthroughs 9 are over the Scope of a threadless shaft area of screw 3 distributed.
  • To in the transition area from channel 7 to Breakthroughs 9 each have a sufficient flow cross section have in the circumferential direction of the screw 3 lateral pockets 10 are provided in the wall area of the housing 1.
  • the cavity 8 of the screw 3 leads into the connecting part, on which the filter sits.
  • the screw 3 is in its unthreaded shaft area an annular seal 11 is sealed against the wall of the housing 1.
  • an internal hexagon profile is provided, to be able to tighten the screw.
  • the seal between the filter housing 1 and the connecting part, on which the filter is placed causes a Form seal 12, which has an additional connecting channel between filter housing and connector in the connection area tightly encloses.
  • the filter shown is for horizontal installation thought.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft ein Flüssigkeitsfilter nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a liquid filter according to the preamble of claim 1.

Es gibt Anwendungsfälle, in denen die Gewindebohrung innerhalb des Anschlußteiles, an der ein gattungsgemäßes Filter zu befestigen ist, mit Bezug auf außerhalb des Anschlußteiles liegende Bauteile derart liegt, daß eine Befestigung des Filters über eine zentrisch in dem Filtergehäuse angeordnete Befestigungsschraube nicht möglich ist.There are applications where the tapped hole is inside of the connecting part on which a generic filter is to be fastened with reference to outside the connecting part lying components in such a way that an attachment of the Filters over a centrally arranged in the filter housing Fastening screw is not possible.

Hierfür eine Lösung zu finden, ist die Aufgabe der vorliegenden Erfindung, die durch eine Ausführung nach dem kennzeichnenden Teil des Patentanspruchs 1 gelöst wird.The task of the present is to find a solution for this Invention by an embodiment according to the characteristic Part of claim 1 is solved.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of subclaims.

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt. An embodiment is shown in the drawing.

Es zeigen

Fig. 1
einen Längsschnitt durch ein Filter,
Fig. 2
eine Ansicht auf den Anschlußflansch des Filters,
Fig. 3
einen Schnitt durch die Befestigungs-Schraube des Filters nach Linie IV-IV in Fig. 3 in um 45 ° verdrehter Stellung.
Show it
Fig. 1
a longitudinal section through a filter,
Fig. 2
a view of the connection flange of the filter,
Fig. 3
a section through the mounting screw of the filter according to line IV-IV in Fig. 3 in a position rotated by 45 °.

Das Filter besitzt ein topfförmiges Gehäuse 1, in das ein Schraubdeckel 2 einschraubbar ist. Dieses Filter ist mittels einer Schraube 3 an einem nicht dargestellten Anschlußteil befestigbar. Die Anschlußbereiche des Filters und des Anschlußteiles sind jeweils plan ausgebildet, so daß die beiden Teile über Dichtungen gegeneinander gedichtet werden können.The filter has a cup-shaped housing 1 into which a Screw cap 2 can be screwed in. This filter is by means of a screw 3 on a connection part, not shown fixable. The connection areas of the filter and the connection part are each formed flat so that the two Parts are sealed against each other using seals can.

Die Schraube 3 liegt mit ihrem Schraubenkopf innen an dem Boden des Filtergehäuses 1 an, so daß das Filtergehäuse fest an das Anschlußteil angepreßt ist. Im Inneren des Filters befindet sich ein austauschbarer Ringfiltereinsatz 4. An einer Stirnseite ist dieser Filtereinsatz verschlossen und über eine Schnappverbindung an dem Boden des Schraubdeckels 2 befestigt. An der anderen Stirnseite ist der Filtereinsatz 4 radial dicht auf einen gehäuseseitig angebrachten Hohl-Stutzen 5 dicht aufgeschoben.The screw 3 lies with its screw head on the inside Bottom of the filter housing 1, so that the filter housing firmly is pressed onto the connector. Inside the filter there is an exchangeable ring filter insert 4. On one This filter insert is closed at the front and via a snap connection on the bottom of the screw cap 2 attached. The filter insert is on the other end 4 radially tight on a hollow socket attached to the housing 5 pushed on tightly.

Der Filtereinsatz 4 wird von radial außen nach innen durchströmt. Die gefilterte Flüssigkeit tritt durch den hohlen Stutzen 5 aus. Die zu filternde Flüssigkeit tritt über eine als Zulauf 6 dienende Öffnung von einer korrespondierenden Öffnung des Anschlußteiles aus in das Filter ein.The filter insert 4 is flowed through from the outside radially inwards. The filtered liquid passes through the hollow Nozzle 5. The liquid to be filtered passes through a serving as inlet 6 from a corresponding Open the connector from the filter.

Die gefilterte Flüssigkeit gelangt von dem Stutzen 5 aus über einen in die Gehäusewand eingeformten Kanal 7 in einen in die Schraube 6 eingeformten Sackloch-Hohlraum 8 ein. Dieser Eintritt erfolgt dabei über radial in der Schraube 3 vorgesehene Durchbrüche 9. Diese Durchbrüche 9 sind über den Umfang eines gewindelosen Schaftbereiches der Schraube 3 verteilt. Um in dem Übergangsbereich von dem Kanal 7 zu den Durchbrüchen 9 jeweils einen ausreichenden Strömungsquerschnitt zu besitzen, sind in Umfangsrichtung der Schraube 3 seitliche Taschen 10 in dem Wandbereich des Gehäuses 1 vorgesehen. Der Hohlraum 8 der Schraube 3 führt in das Anschlußteil, auf dem das Filter aufsitzt.The filtered liquid comes out of the nozzle 5 via a channel 7 molded into the housing wall into the screw 6 formed blind hole cavity 8. This Entry occurs radially in screw 3 provided breakthroughs 9. These breakthroughs 9 are over the Scope of a threadless shaft area of screw 3 distributed. To in the transition area from channel 7 to Breakthroughs 9 each have a sufficient flow cross section have in the circumferential direction of the screw 3 lateral pockets 10 are provided in the wall area of the housing 1. The cavity 8 of the screw 3 leads into the connecting part, on which the filter sits.

Die Schraube 3 ist in ihrem gewindelosen Schaftbereich über eine Ringdichtung 11 gegenüber der Wand des Gehäuses 1 gedichtet. The screw 3 is in its unthreaded shaft area an annular seal 11 is sealed against the wall of the housing 1.

In dem Kopf der Schraube 3 ist ein Innensechskantprofil vorgesehen, um die Schraube anziehen zu können.In the head of the screw 3, an internal hexagon profile is provided, to be able to tighten the screw.

Die Dichtung zwischen dem Filtergehäuse 1 und dem Anschlußteil, auf das das Filter aufgesetzt wird, bewirkt eine Formdichtung 12, die noch einen zusätzlichen Verbindungskanal zwischen Filtergehäuse und Anschlußteil in dem Verbindungsbereich dicht umschließt.The seal between the filter housing 1 and the connecting part, on which the filter is placed causes a Form seal 12, which has an additional connecting channel between filter housing and connector in the connection area tightly encloses.

Das dargestellte Filter ist für einen horizontalen Einbau gedacht.The filter shown is for horizontal installation thought.

Claims (3)

  1. Liquid filter, in particular lubricant oil filter for an internal-combustion engine, with a pot-like housing (1), a cap (2) which can be placed thereon, at least one replaceable annular filter insert (4) flowed through radially from the outside inwards, an inlet and outlet for the liquid flowing through the filter inside the base of the pot-like housing, a fastening of the housing base to a connecting part with orifices corresponding to the inlet and outlet of the filter, in which the housing is fastened by a screw (3) which penetrates the housing base to the connecting part and the discharge takes place through this screw, and in which furthermore the filter insert at the bottom end of the housing is slipped tightly onto a connection piece which carries away the purified liquid, characterised by the following features:
    the screw (3) is arranged off-centre,
    the screw (3) is a blind hollow screw with closed head,
    the screw (3) has a threadless shank region between its head and a thread provided at the opposite end,
    the screw (3) penetrates the housing wall, which the screw head tightly adjoins, in the threadless shank region,
    peripherally distributed radial apertures (9) leading to the blind hole region are provided in the threadless shank region of the screw (3),
    a duct (7) leading radially from the outlet of the base-side filter insert connection piece (5) to the threadless region of the screw (3), is provided in the housing wall surrounding the threadless shank region,
    the duct (7) is connected to the radial apertures (9) in the screw (3),
    the liquid-conveying hollow space (8) of the screw (3), with the exception of an inlet from the duct (7) and an outlet, is sealed from the outside.
  2. Filter according to claim 1, characterised in that a ring seal (11) which acts with respect to the housing wall is provided in the region between the apertures (9) of the shank of the screw (3) and the adjoining thread of this screw (3).
  3. Filter according to claim 1 or 2, characterised in that the connecting duct (7) opens into the orifice in the housing wall which receives the screw (3) via a housing wall extension (pockets 10) provided on either side of the screw (3) in the peripheral direction of the apertures (9).
EP97104450A 1996-04-01 1997-03-15 Liquid filter, especially lubricant oil filter for a combustion engine Expired - Lifetime EP0799632B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19613101 1996-04-01
DE19613101A DE19613101A1 (en) 1996-04-01 1996-04-01 Liquid filters, in particular lubricating oil filters for an internal combustion engine

Publications (2)

Publication Number Publication Date
EP0799632A1 EP0799632A1 (en) 1997-10-08
EP0799632B1 true EP0799632B1 (en) 2002-01-23

Family

ID=7790224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104450A Expired - Lifetime EP0799632B1 (en) 1996-04-01 1997-03-15 Liquid filter, especially lubricant oil filter for a combustion engine

Country Status (2)

Country Link
EP (1) EP0799632B1 (en)
DE (2) DE19613101A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951084A1 (en) * 1999-10-23 2001-04-26 Mahle Filtersysteme Gmbh Oil filter esp. for lubricant oil in IC engines for motor vehicles has separate functional carrier insert containing all components requiring finishing
DE29921168U1 (en) 1999-12-02 2001-04-05 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Liquid filter with removable, central component, with additional holding component
DE29922488U1 (en) * 1999-12-22 2001-05-03 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Easy to install liquid filter with adapter
DE10132200A1 (en) * 2001-07-03 2003-01-23 Mahle Filtersysteme Gmbh Liquid filter used as an oil filter of an internal combustion engine comprises an annular seal axially fixed in a sealing cap and lying adjacent to the end of an external thread facing the closed end of the sealing cap
DE102009015022A1 (en) * 2009-03-26 2010-09-30 Mahle International Gmbh filtering device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897966A (en) * 1955-05-24 1959-08-04 Wix Corp Filter unit
DE1801993U (en) * 1959-10-29 1959-12-10 Bayerische Motoren Werke Ag OIL FILTER ARRANGEMENT ON COMBUSTION MACHINES EQUIPPED WITH AN OIL COOLER.
FR1301444A (en) * 1961-07-07 1962-08-17 Fr Des Freins Hydrauliques Loc Oil filter
DE1852647U (en) * 1961-09-09 1962-05-30 Bosch Gmbh Robert CARRIER FOR LUBRICATING OIL FILTER.
GB1156608A (en) * 1967-05-17 1969-07-02 Gen Motors Ltd Liquid Filter Assemblies
DE2553293C3 (en) * 1975-11-27 1979-11-15 Daimler-Benz Ag, 7000 Stuttgart Lubricating oil filter with a filter bowl standing on a filter base
DE2555420C2 (en) * 1975-12-10 1977-12-15 Daimler-Benz Ag, 7000 Stuttgart Filter housing to accommodate at least one filter insert for cleaning lubricating oil
US4552662A (en) * 1984-07-02 1985-11-12 Cummins Engine Company, Inc. Integral fuel filter head and adapter for multiple fuel filter canisters
DE29509806U1 (en) * 1995-06-16 1995-08-24 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Liquid filter

Also Published As

Publication number Publication date
DE19613101A1 (en) 1997-10-02
EP0799632A1 (en) 1997-10-08
DE59706151D1 (en) 2002-03-14

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